Dan, thanks, that helps my curiosity a bit.
A number of things about the Wouxun made more sense after someone had posted the datasheet for the microcontroller which the vendor named "FRS-MCU".
http://www.emc.com.tw/eng/com_prod_dsc.asp?gid=&tid=000002&tt=com_fr...
I haven't looked yet to see if the Puxing, TYT, etc. are using the same chip or same manufacturer. Though I suppose some of them could be using clones of this chip or that chip is a clone of ... (loop detected).
On 7/26/2011 9:59 AM, Dan Smith wrote:
[...] I put it on the service monitor to check it out. I knew right then that it wasn't the Yaesu guts and that they only attempted to mimic the external appearance. I have a little more on that, if you're interested.
If you are willing to take the time to type it, I'd love to read it.
The memory format is strange and I honestly can say I don't really understand it. The strangeness may be indicative of a firmware author that didn't really know what he was doing, but rather was just tasked with porting
I suspect you are right. That pattern seems to show up in other products.